Furnace



(No Model.)

J.-W. HO-LAMY.

FURNACE.

. P atented Mar. 5,1895.

' the same level with bars M and adapted to JOHN W. HOLADAY, OFRIDGl/VAY, PENNSYLVANIA.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 535,137, dated March 5,1895.

Application filed October 29, 1894.

To ctZZ whom it may concern:

Be it known that I, JOHN W'. HOLADAY, a citizen of the United States,residing at Ridgway, in the county of Elk and State of Pennsylvania,have invented certain new and useful Improvements in Furnaces; and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

My invention consists in the following construction and combination offurnace peculiarly adapted for the purpose of burning spent tan bark,the details of which will be first fully described and the features ofnovelty contained therein then set forth in the claim.

In the drawings: Figure 1 represents a transverse section of furnace towhich I have applied my improvements, and Fig. 2 a top plan view thereofthe upper portion being broken away.

A represents preferably masonry work forming the walls and arch of myimproved furnace. It is so arranged that the door level is disposedacross the top of furnace, with one or more feed holes made verticallythrough the apex of the arch down into furnace below. The masonry workof the side walls extends preferably up to the floor level, while thespace within the brick arch has preferably an earth or other filling.

M represents angle-irons let into the side walls of the furnace for thepurpose of supporting the outer edges of the horizontal grates D.

G are two angle-iron bars parallel and on support the inner edges ofgrates D and the outer edges of grates E.

F is a centrally arranged supporting angle- Serial No. 527,102. (Nomodel.)

iron parallel with the others, before referred to, and located centrallyof and above the other angle-irons. It supports the inner ends of theinclined grate bars E at their apex, the lower ends of said grate barsbeing supported'by bars G, and also abut against the inner sides of thegrates D.

The angle-bars F and G may be adapted to be reversed or turned upon thepivots 0, whereby additional bearing surfaces may be presented, or thetendency of the bars to warp maybe corrected. The upper bar F ispreferably of L-form in cross section, and has two bearing surfaces,while the bars G have preferably triangular radial webs which providethree bearing surfaces.

If desired the chains L, or other equivalent means, permit the inclinedgrates E to be swung back and upward in order to provide ingress for theworkmen for making repairs and the like.

1-1 are the furnace doors opposite the grates D, and I the ash pitdoors.

I claim- The combination of a furnace provided with

